Composer David Lang's optimism, performed by So Percussion, has found a new lease of life by providing the soundtrack to a new hi-tech handbag by New York-based designer Diana Broussard that also features a customisable LCD screen. In the film below you can hear Lang's piece as it is incorporated in to the dbCHRONICLE.

Broussard explains: 'The idea is to radically bring technology to fashion, but with creative beauty within a functional beautifully designed bag. There is a rise of video creation and consumption. This design adds a new dimension to self-expression by introducing motion to fashion with videos.'